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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-15 12:49:07 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-15 13:01:14 +0300 |
| commit | bde13ebdab0778b758b267ff9e38d6c10a42bdc3 (patch) | |
| tree | dbfb577c81b1a7d2e8b4ffb74d319cc66406c014 /drivers/gpu/drm/i915/intel_overlay.c | |
| parent | 058d88c4330f963033a5d11b269c8f86677494d1 (diff) | |
| download | linux-bde13ebdab0778b758b267ff9e38d6c10a42bdc3.tar.xz | |
drm/i915: Introduce i915_ggtt_offset()
This little helper only exists to safely discard the upper unused 32bits
of the general 64-bit VMA address - as we know that all Global GTT
currently are less than 4GiB in size and so that the upper bits must be
zero. In many places, we use a u32 for the global GTT offset and we want
to document where we are discarding the full VMA offset.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471254551-25805-28-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_overlay.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_overlay.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c index 402e05f2f1de..72f8990a13d2 100644 --- a/drivers/gpu/drm/i915/intel_overlay.c +++ b/drivers/gpu/drm/i915/intel_overlay.c @@ -801,7 +801,7 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay, swidth = params->src_w; swidthsw = calc_swidthsw(dev_priv, params->offset_Y, tmp_width); sheight = params->src_h; - iowrite32(vma->node.start + params->offset_Y, ®s->OBUF_0Y); + iowrite32(i915_ggtt_offset(vma) + params->offset_Y, ®s->OBUF_0Y); ostride = params->stride_Y; if (params->format & I915_OVERLAY_YUV_PLANAR) { @@ -815,8 +815,10 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay, params->src_w/uv_hscale); swidthsw |= max_t(u32, tmp_U, tmp_V) << 16; sheight |= (params->src_h/uv_vscale) << 16; - iowrite32(vma->node.start + params->offset_U, ®s->OBUF_0U); - iowrite32(vma->node.start + params->offset_V, ®s->OBUF_0V); + iowrite32(i915_ggtt_offset(vma) + params->offset_U, + ®s->OBUF_0U); + iowrite32(i915_ggtt_offset(vma) + params->offset_V, + ®s->OBUF_0V); ostride |= params->stride_UV << 16; } @@ -1412,7 +1414,7 @@ void intel_setup_overlay(struct drm_i915_private *dev_priv) ret = PTR_ERR(vma); goto out_free_bo; } - overlay->flip_addr = vma->node.start; + overlay->flip_addr = i915_ggtt_offset(vma); ret = i915_gem_object_set_to_gtt_domain(reg_bo, true); if (ret) { |